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Compatibility: STS-451 Alarm Systems
Microphone Overview This is a wired microphone for our STS-451 alarm systems. It allows you to listen-in by phone. -- Microphone Specifications -- Operating Voltage: 9v ~ 16v DC Power Operating Current: 5mA ~ 6mA Sensitivity: 200mA/ubar Max Output Voltage (Resistance): 600 ohm Range: 150m3 ~ 300m3 (Frequency: 100-10K Hz)